Ingot-pushing device



March 4, 1930.

J. GAssEN INGOTPUSHING DEVICE JOSEF eAssnN, .on DUSSELDORF,

Patented Mar. 4, `1930 UNITED STATES PATENT i GERMANY,AssIGNon-lmofscnLoE-MANN vnx'irnryv ensmscmr, yor DUSSELDORF, GERMANY, nv-coaroaarroiv, y.on ycamini-.1W ,t

INGO'r-PUSHING ruimenv Application nled July 23,

l' My invention relates to mechanismioringot pushing devices used forintroducing in- Frequently, the space 4available on the sidev of thefurnace where the ingots are introduced, is not large `ments used forthis fkindaof Vwork to `push enough to permit the aelethe ingots farenough into the furnace. In that case, it becomesfnecessary'to use,telescoping elements adapted'tofbe extended 'and shortened. Byj-meansof such telescoping elements which arefirst coupled at one end, theingots can be pushed into the furnace to a certain depth, but then'itbecomes necessary yto loosen the coupling, to pull the `elements apartbackwards to again couple them at the other end and `then push theingots by means of the kpushing head to `the desired depth into thefurnace.v The'same-operation,

in the reverse order, must then be repeate upon the withdrawal :of rthepushing `head from the furnaceconsuming much time,.dur

ing which time,the elements, as they lie idle in the 4furnacebecome'very hot, According to the present invention, auxiliary''screwspindles are provided, in addition to the main screw-spindle, saidauxiliary spindles carrying the pushing head adapted to act von theingots and being so arranged that the ingots caribe quickly and securelypushed into vthe reheating furnace to any desired de th, so that theelements .used'or the intro notion of the ingots will not be exposed tothe hot combustion gases of the furnace `any longer than is requiredfo'r pushing 'theingots in.

In the drawing, in which I havelshown, by way of illustration, anembodiment of :the invention, Y

' Fig. 1 shows the new device ready to push ingots into a reheatingfurnace', parts being showl .in section, while Fig. 2 show s'the sameadvanced position.

- Y Vdevic with ythe operating elements in partly operatively .eggedspindles 18, theeiitensionmembers,10;adapted to be operatedjby said.nuts .fz-9 the .annullarso guid-in members' 11, .and the pushing vhead13 carried tt-hereby." At :1'5 :are shown :several ingots,

17fis designated -the depth of introduction, Wt

ile '18 designates lfthe 'available :space 1n .e5 z-ront of the lfurnace16, vwhich s ace,'un'der vOrdinary ',conditions, would :not .e sucientto permit .ingots togbe'pushed'into the furnace e' .to .therequireddepth means O? one-piece .foperatingelements A The :motor shown'at 14: Vvisfilised :o'r .rotating, by means; of the pinion 20, randkthe which is rotatablyjournalled in the stationaryframe 2 at 19 and19a. By means ofthe 75 l'nu-t :secured t,for vformed vintegral4afvith,the d :movable cross-bm 3 ,f'the latter 'is `movedlongitudinally, "as spindle 1 vis rotated, .as findicated 'in .FigLxZ'In the movable .cross- 'beam' 3 "is Irotatably journalledtheltoothed,eo

wheel-16 which is keyed to .spindle 1,-.a fion tudinajl groove21 being'provided `therein or the *key `VViththetoothed-wheel ,6 arein imesh, onl,eitherside ".thereof,'ithe :smaller y y,to'otheil wheels]w-liich1',are mounted-'at "the 85 ends 'of the auxiliary.screwvespindles 18 ro- .tatably journalled inthemova'ble cross-beam 3.and which, byl means of the nuts`9,-cause ya longitudinal movement ofthe .extension members `10 carrying-the pushing head 13.' For 90':

rpreventing the'auxiliary spindles y8 and the extension `members10,"fsrom bending, annular ,guides '11 are provided, ,which move 'inrtubu- 'f a rguards .12 yadapted :to slide in `the Vstationary frame 2.YIn view lof the positive-connec'- 115 'l i .tion ebetween the mainscrewfspindle 1, the auxiliary spindles 8, the extension members 10 andthe pushing l.head 13, the path travrelled by :the latter, without anyspecial :coupling, 'isgtwice that of the `movable cross-'beam "100 andat isis-insieme they-furnace, 1

3, and the same is the case, as the spindles 8 are withdrawn from theiradvanced position. In this manner, the introduction of the ingots intothe furnace and the Withdrawal of ushing head 13 are effected much morerapidly than with the telescopic mechanism heretofore used, and thevarious elements will not 'lie idle for any length of time and beexposed to the heat of the hot combustion gases. e

I claim: 1

l. In an ingot pushing device, the combination with the frame, a mainoperating spindle journalled therein and the pushing head,

of a movablepart adaptedto be moved back and forth along said frame bysaid main s indle, auxiliary spindles rotatably journa ed in said-movable part, and means in said frame operableby said main spindle'foroperation said auxiliary spindlesv to thereby advance and retract said-pushing head.

2. In an ingot pushing device, the combination with the frame, of a mainoperating spindle journalled therein and the `pushing,

head, of a movable cross-beam adapted to be moved back and forthalongsaid frame by said'main s indle, auxiliary spindles rotatably journa edin'said movable cross-beam,

means in said frame operableby said main spindle for operating saidauxiliary spindles,

and lmeans actuated by said auxiliaiy spindles so as to advance andretract sai pushing head.

vv3. In an ingot pushin l device, the-combi@ nation with the frame, oamainscrew-spindle journalled therein and the pushing head of a movablecross-beam adapted to be moved back and forth along said frame by saidmain screw-spindle, auxiliary Yscrew-spindles irotatably journalled insaid Ymovable crossbeam, toothed wheels at the' inner ends of saidauxiliary screw-spindles, a toothed wheel on said main screw-spindleadapted to rotate therewith and in mesh with Vsaid toothed p wheels,means for rotating said mainl screwf spindle ineither direction, andextension ele`- ments 'actuated by said auxiliary screW-spin dless'f astoadvance and retract said pusl 1n head. i Y

y JOSEF ASSEN..

n testimony whereof, I aix ng signature. i

